The site is adding a handful of new designers to their inventory today, including Anna Sui, Erin Fetherston, Cynthia Rowley and Thakoon. That means brilliant prints, bright colors and feminine silhouettes perfect for the stifling temperatures outside.

As an added bonus, each designer has given RTR 20 signed sketches of one runway look to give to the first 20 women who rent their dresses and one lucky customer will get to keep a Thakoon dress. If it's the one at left, let us know—we'd happily rent it from you.